Edwin Cohn developed cold ethanol fractionation
In 1940, Edwin Cohn, a professor of biological chemistry at Harvard Medical School, developed cold ethanol fractionation, the…
Dogsled relay in Alaska delivered antitoxin serum to Nome to combat deadly diphtheria outbreak
On Feb. 2, 1925, a life-or-death race to save the children of Nome from a diphtheria epidemic made…